Apparatus for tabulating the passenger traffic on car-lines.



J. T. CRABBS.

APPARATUS FOR TABULATING THE PASSENGER TRAFFIC ON GAR LINES.

- APPLICATION FILED JAN. 13, 1910.

Patented May 24, 1910.

3 SHEETS-SHEET 1.

- I 2 amoe/wtoz J. T. CRABBS. APPARATUS FOR TABULATING THE PASSENGER TRAFFIC 0N cAR LINES.

APPLICATION FILED JAN. l3 1910. 959,31 3. Patented May 24,1910.

3 SHEETS-SHEET 2.

J. T. ORABBS. APPARATUS FOR TABULATING THE PASSENGER TRAFFIC 0N GAR LINES.

Patented May 24, 1910.

3 8HEETSSHEET 3.

APPLICATION FILED JAN. 13,1910.

UNITED STATES PATENT OFFICE.

JOSEPH T. CRABBS, OF BROOKLYN, NEW YORK. I

APPARATUS FOR TABULATING THE PASSENGER TRAFFIC ON CAR-LINES.

T 0 all whom it may concern:

Be it known that 1 JOSEPH T. Games, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Apparatus for Tabulating the Passenger Traffic onCar- Lines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to apparatus for tabulating the passenger traflic on a car line, and the object of the invention is to record graphically the relation between the available seats, and the passengers carried by a given car line at any given point.

It becomes important in practice to determine the relative number of passengers carried as compared with the seating capacity of the'cars at various times of the day. Thus during the rush hours it is important to ascertain what number of cars are required to carry the heavy loads, while during the slack hours of the day it is important, as far as practicable, to dispense with any excess of cars. The idea being to apportion the cars according to the varying requirements of the trailic, in the herein described apparatus, I provide means for graphically indicating the difference between the seating capacity of the cars and the number of passengers carried by said cars.

My invention will be understood by reference to the accompanying drawings, in which the same parts are indicated by the same letters throughout the several views.

Figure 1 is a plan view, full size, of the instrument, parts being broken away. Fig. 2 is aside elevation as seen from the right of Fig. 1. Fig. 3 shows a section along the line 33 of Fig. 1. Fig. 4 is a perspective view of one of the sliding rods carrying a punch and pointer. Fig. 5 shows a modification in which two punches are carried by the same sliding bar. Fig. 6 is a detail showing the paper used in the apparatus. Figs. 7 and 8 show modifications in which a copying ribbon and keys are used instead of the punch ofthe previous figures. Fig. 9 shows another modification in which a pencil is inserted in a sliding block and is caused to make a mark on the paper, and

Specification of Letters Patent.

Application filed January 13, 1910.

Patented May 24, 1910.

Serial No. 537,954.

Fig. 10 shows the paper marked with the pencil, as shown in Fig. 9.

A represents a casing which is preferably provided with glass panels an on top and with a door a at the back, hinged as at a and fastened as at a see Fig. 3. Next to the glass panels a are the scales B and C, separated by a slot, as shown in Fig. 1. On the scale B the normal seating capacities of the various types of cars are marked. Thus let us assume that the various types of cars running on any'given line have the seating capacities, respectively, of thirty, forty eight, sixty and sixty five persons, as shown on the scale B. The scale C is calibrated from 0 to 100 to correspond with the rulings on the paper D, which is passed beneath the glass panels a and iswound on the drums E and E, as shown'in Figs. 1 and 3. These drums are preferably slotted, as at e, to permit the insertion of the edge of the paper which is then wound on said drum, as shown. This paper is passed through the slot h of the sliding bar H, as shown in Fig. 3, and this record paper is ruled to correspond to the graduations on the scales C and B, the ordinates indicating the passenger capacity, and the abscissae indicating the time interval. Thus by reference to Fig. 6 it will be noted that the horizontal lines used to note the number of passengers are numbered from 0 to 100, while the vertical lines used to indicate the time interval are marked every ten minutes. Of course the paper may be marked to indicate minute intervals, or less, if desired. In the form of device shown in Figs. 1 to 4, two bars H are arranged to slide in the casing, each slotted as at h to permit the passage through the record paper, and each bar carrying the punch 1, whose end 71 projects into the die h". The punch is normally restored to the initial position by means of the spring 91. There are two of these punches I and I,-each on its bar H and H, and each punch carries a pointer 2' and 2' traveling over the corresponding scales B and C, as shown in Fig. 1. Each drum E is turned by means of a milled head E and to prevent lost motion a friction bearing is provided, as shown, for instance in-Fig. 1, in which the end e of the shaft of the drum bears against the spring f which is held under compression by the thumb nut F.

In practice the observer. holds the instrument in one hand and turns the paper from time to time so that the proper time may be indicated beneath the glass cover. As each car passes the observer moves the punch I so that its pointer will point to the normal seating capacity of the car indicated on the scale B. The observer will, of course, know the normal seating capacity of each type of car used on the line. Having moved the pointer 71 to the position indicated, he punches a hole in the paper indicated by one of the larger circles in Fig. 6. Now the observer estimates the number of passengers carried by said car and moves the pointer 2' to the estimated number of passengers indicated by the scale 0. He then operates the punch I and makes one of.,the small circles shown in Fig. 6'. The distance be:

tween the small circleand the large circle punched out of the paper will show the differencebetween the seating capacity of the car and the number of passengers carried by said car, and if the observer keeps turning the paper'so that the time interval will he approximately shown he will make graphic record of the number of cars, the seating capacity of the cars, and the number of,

passengers carried by said cars, and this record will show graphically whether the loads on the cars are too heavy or too light, and whether more or less cars. are needed at the time of the observations. By taking a series of observations during the entire day, the trafiic at any given pointwill be graphically indicated for that day, and obviously records-may be made of the trafiic .for different days of the week, month, &e.

punches I and I may be used, as shown in Fig. 5, or instead of using punches, keys carrying letters or other characters may be used, as shown in Figs. 7 and 8. In these figures M represents a block carrying a key I, which block is secured, as at m, to slide between the scales B and C. N represents a carbon ribbon which is wound over the drums O and O, as by means ofthe handle 0, and P represents a platen beneath the ribbon. Two of these keys I and I are used, one to indicate the seating capacity of the car, and the other the number of passengers carried by thecar.

In'the modification shown in Fig. 9, the block Q,v is grooved as at g, to slide over the scales B and C, and is provided with oppoassgreater t an theseating capacity, and another color of pencil when the seati capacity is greater than the load, a a ic representation of the condition 0 t e trafiic may be secured. Thus, by referring to Fi 10, if the line S be made with red pencil it would indicate that in a car having a seating capacity of fifty there were thirty passengers standing, while if the line S be made with a blue pencil it would indicate that in a car having a seating capacity of fifty five there were twenty five passengers only, leaving seats availab e for thirty persons.

' It will be obvious that various other modifications may be made, in which the same general idea may be carried out of producmg a visual record of the difference between the seating capacity of the various cars and the passengers on said cars.

Having thus described my invention, what I claim and desire to secure by Letters Pat ent of the United States is 1. An apparatus of the character described comprising a paper holder adapted to carry a strip of ruled paper, provided with graduations to indicate elements of time, and other raduations to indicate numerals, means or moving said strip of paper, means for making two sets of marks on said paper, andtwo calibrated scales to guide sa1d mark making means, substantially as described.

2. An apparatus of the character described comprising a paper holder adapted to carr a cas &StllP Of paper movably mounte d in said casing and provided with a series of graduations arranged in rectangular form, scales mounted 1n front of said paper, pointers traveling along said scales, and means for marking on sa1d paper the position of the respective pointers, substantially as described.

3. An apparatus of the character described comprising a paper holder adapted to carry a strip of ruled paper, provided with graduations to indicate elements of time, and other. duations to indicate numerals, means or moving said strip of paper, punches for making two sets of marks on said paper, pointers carried by said punches, and two calibrated scales beneath said pointers, substantially as described.

stasis 4. An apparatus of the character described comprising a paper holder adapted to carry a casing, a strip of paper movably mounted in said casing and provided with a series of graduations arranged in rectangular form, the abscissae to indicate elements of time, the ordinates-to indicate numbers of passengers, scales mounted in front of said paper, pointers traveling along said scales, and means for marking on said paper the position of the respective pointers, substantially as described.

5. An apparatus of the character described comprising a paper holder adapted to carry a strip of ruled paper, provided with abscissae graduated to indicate elements of time, and ordinates graduated to indicate numbers of passengers, means for moving said strip of paper, and means for making two sets of marks on said paper, substantially as described.

' 6. An apparatus of the character described comprising a paper holder adapted to carry a strip of ruled paper, provided with abscissae graduated to indicate elements of time, and ordinates graduated to indicate numbers of passengers, means for moving said strip of paper, means for making two sets of marks on said paper, and two calibrated scales to guide said mark making means, whereby a visual record is made to indicate the difference between the a seating capacity and the passenger load, substantially as described.

7. An apparatus of the character described comprising a paper holder adapted to carry a casing, a strip of paper movably mounted in said casing and provided with a series of graduations arranged in rectangular form, two scales mounted in front of said paper, pointers mounted between and traveling along said scales, and means for marking on said paper any given position of the two pointers, respectively, substantially as described.

In testimony whereof, I aflix my signature, in presence of two witnesses.

JOSEPH T. CRABBS. 

